Mending of stockings in sewing machines



ay 24, 1949. F. GEGAUF MENDING OF STOCKINGS IN SEWING MACHINES 3SheetsSheet 1 Filed Dec. '7, 1944 y 1949 F. GEGAUF MENDING OF STOCKINGSIN SEWING MACHINE s 5 Sheets-Sheet 2 Filed Dec. 7, 1944 :1.- ay 24,1949. F. GEGAUF 2,471,370

MENDING OF STOCKINGS IN SEWING MACHINES Filed Dec. 7, 1944 sSheets-Sheet 5 jiweniurz' Patented May 24, 1949 MENDING 01F STOCKINGS INSEWING MACHINES Fritz Gegauf, Steckborn, Switzerland, assig'nor to FritzGegaufs Sohne Aktiengesellschaft, Stockborn, Switzerland ApplicationDecember 7, 1944, Serial No. 566,998 In Switzerland July 31, 1943Section 1, Public Law 690, August 8, 1946 Patent expires July 31, 1963 4Claims.

This invention relates to an arrangement for mending stockings on sewingmachines provided with a free arm that includes the looper and overwhich arm the stocking to be mended is drawn.

In accordance with the invention, support means are provided on theupper side of the free sewing machine arm for limiting the lateralmovement of a closed holding ring used for holding the stocking, saidring being provided withan internal spreading clamping ring for clampingthe stocking.

The stocking is therefore held in the holding ring when the clampingring is manually released by the operator after the latter has insertedthe stocking in correct position. The limited lateral range of movementof the holding ring facilitates clamping the stocking in said holdingring because the deflectional course of the holding ring iscorrespondingly limited, that the holding ring can be localized inpredetermined position, and such position maintained within the range ofthe sewing machine needle. In order to permit shifting of the workingposition and therefore of the clamped portion of the stocking, thelatter remains on the sewing machine arm and the same is true of theholdin ring, since only the internal spreading clamping ring is removedfrom the holding ring (by squeezing the ends of the clamping ringtogether) and after the stocking is shifted, the clamping ring is againinserted. The use of an internal spreading clamping ring in the holdingring permits thin and thick stockings to be clamped with equaluniformity without damaging them, and this is of very great importancein the case of fine stockings, such as those made of artificial silk.The whole constitutes an easily and conveniently manipulated accessoryfor stocking mending operations.

The internal spreading clamping ring is, preferably, provided exteriorlywith a special surface for engaging and supporting the stocking, saidsurface extending over the open portion of the periphery thereof so asalso to provide a supporting surface for the stocking in this region inorder to be able to retain the stocking free from folds in the holdingring.

The accompanying drawings serve for illustratively explaining the saidtwo modes of carrying out the method according to the present invention.In this connection several forms of an auxiliary device which serves foreffecting this work and also forms part of the present invention areillustrated in said drawings, by way of example only, in which Fig. 1shows a longitudinal elevation partly in section of a first form of anauxiliary device which is arranged on a freely projecting arm of asewing machine and includes a movably guided holding ring.

Fig. 2 is a corresponding top plan view partly in section;

Fig. 3 shows a respective end elevation as seen from the left hand sideof Figs. 1 and 2;

Fig. 4 shows an elevation of a second form of 1e auxiliary deviceincluding a loose holding ring which is shown in section;

Fig. 5 is a top plan view of Fig. 4;

Fig. 6 shows an end elevation as seen from the left hand side of Figs. 4and 5;

Fig. '7 shows an elevation of a further form of the auxiliary devicealso including a loose holding ring being shown in section.

Fig. 8 is a corresponding top plan view;

Fig. 9 is a view similar to Fig. 1 representing a modification of thefirst exemplification and Fig. 10 is a top plan view of Fig. 9.

In Figs. 1 to 3, the freely projecting arm of the sewing machine isdesignated by I. This arm emanates from the base 2 of what may be termeda table board supported sewing machine and is provided at its free endface with a 010- sure flap 3. By displacing this closure flap 3downwardly free access to the looper which is located in the freelyprojecting arm 1 of the sewing machine is obtained at theside of thecloth feeder in a manner known. The numeral 5 designates the needle ofthe sewing machine and 6 refers to a mending presser foot which isdetaohably fastened to the needle bar.

A carrier arm which is denoted by I has pushed thereon a displaceableextension 8 the outer end of which is provided with an annular frame 3in which a holding ring I0 is rotatably journalled. The holding ring I0is prevented from separating from the guide frame 9 by end flanges ii.The carrier arm I is pivotally mounted by means of a pin [2 in a bore l3which is arranged in the plane top surface of the hollow sewing machinearm I. The pivotal movement of the carrier arm 1 is limited in that thisarm projects by means of the end opposite the ring Ill (Fig. 2) into thespace between two projections providing stops l4 on the upper part ofthe machine base 2. The extension 8 is guided by means of a pin l5 whichis secured to the carrier arm I and extends into a. longitudinal slot isin the displaceable extension 8. By this means the dis-- placeableextension 8 is secured against rotation relative to the carrier arm 1and its range of displacing movement is limited at the same time. Thedisplacealble extension 8 =isl pushed on the carrier l by rheansbf abo'repr'ovided therein so as to be readily displaceable relative to thecarrier arm I.

In Figs. 1 and 3 a. stocking ll-which is pushed on the freely projectingmachine arm to "be mended, for example, at the heel portion is indi-.cated in chain-dotted lines. "Thestbekmge"is pushed on the arm I ofthesewmgmacmnein such manner that the portion of the stocking to bemended is moved within the -embrace ofthe holding ring In of theauxiliary device. The stocking is pulled over the machine arm lwith theopening for the leg directed toward-the end of the arm adjoining thebase 2 and the leg portion of the stocking is collapsed so that theportion of the stocking extending within the embrace *of "-the holdingringdoesmot wrinkle; that it becomes taut. The stocking is so applied'to' the auxiliary devicethatthe damaged portion, that is,

theeportion to 'be mended-liesover the holding ring 1'0 wherup'onthisportion ofthe stocking is preissedf-rom' aboveby'means' of 'an'openedclamping ring I! down into the holding ring it] and is secured-therein.Each of the two"ends of the clamping ring I! is provided withan'angul'arly projecting finger piece l8 so that-the'handling of theclamping ring 1T is'facilitated by the presence "of =t'he two-finger"pieces- "t8; as' will be readily understood without any furtherexplanation.

The stocking being'secured tothe holding-ring ID of theauxiliarwdevice'in*the above-described manner can then :be mendedinbusinesslike manner with the 'needle 5y of' the'*"sewing' machine while"the 'carrierarm T '=can"be-"pivoted as required about *the pivotaxisformed' by the pin I 2 and the bore l3"thB-'Xt6ll$i'bl'lj Bcanbe'displaced relative to thecarrier arm 'I-' and the holding ring Ill'rotated relative to the" guide frame 9.

InVFig: 22thefitwo outer end positions of the pivotallydisplaceable'carrierarm I as defined by the two-stops it-are indicated'by chain-dotted center lines" of"twofcir cles' which' -indicatecorresponding positions --ofthe "guide' frame 9. Two further chaindottedacircles: indicate two other possible positions; of the guideframe 9 which can arise ifthe carrier-amil=-is in median position andthe displaceable extension 8 is --either fully advancedor retracted-from-- its full line position asshown. Naturally" many otherintermediate positionsxof the guide :frame 9 are possible between thefour endtpositi'ons of this frame 9- as indicatedinchain-dottedlinesinFig. 2. *An accordingly great number of movements of the holding ring 1are feasibla howeven-to alimited extent within the working-range'of theneedle 5 ofthe'sewing machine. 'A'certain restriction of variability-oimovement-=of the holding ring is obviously -'causedalso=-=bythe mendingpresser foot 6. V g 7 When the described aimilia-ry -device is not inusethe carrier arm 1 is-retracted from the bearing bore 1 3 whereuponthe device can be stored e r- V -Zln theexemplificatiorrshown-in Figs.4-and 5 the loosehold-ingring I ll'is freely movably placed on-top-pfthe sewing-machine--arml. On this arm is set a, cross stop member I9'-'whichis removably connected by means ofa bolt '20. At each end ofthe-c-ross'stop member 19 alobe 2| is -arranged which bears-against theadjacent longitudinal side-0f-= the sewing=machiner :arm I whereby thecross stop member I9 is secured in position on the arm I. By thepresence of the cross stop member 19 the variability of movement of the:holding ring H1 is limit'ecliin -theldirection away from the endfaceof'the projecting arm l within the working range of the needle 5 ofthe sewing machine. The holding ring l0 can also be placed under thestocking A in the required manner only after the stocking I has beenpushed on the freely projecting arm I. I 'lrithe exemplific'ation asshown in Figs. 7 and 8 "the'yariabili-ty of' movement of the holding rinIll is"limited within the working range of the n'eedle' of thesewingfmachine also in the direction towardthe front end face of thefreely projecting arm I. For this purpose the ends of a cross stopme'mb'erf fl are also provided with lobes 23 for entering into bearingengagement with the re s'peotive adjacent longitudinal sides of the armI of the sewing machine. The cross stop member 22 is further unitedinto= a single piece with the cross stopmember 1 9-bymeans-oftwo'connecting member 24,'which"pi'ece is: detachably-v set on the "sewingmachine arm I- by means of the bolt-20. In this construction the holdingring I0 which is r inserted between the two cross stop members l9, -22:is prevented from sliding outof the working range of-theneedle of thesewing machine during the operation of =pushing' the stocking-PA: inposition to be mended as well duringthe operation ofremovingit'from-said position. The holdingring ii! is prevented fromsliding off'of' the-front end face of the freely'projectingarm I-of-thesewing machine while the stocking is beingremoved.

The restriction of variability of movement of the auxiliary: devicewithin the working range of the needle of the-sewing machine-enables theunskilled operator to readily'handle the auxiliary device-properlywithin the'working rangeof the needle ofthe sewing machine. Thishandling can in case of necessity be-carried out in modifiedmannerfrom-the description of the first exemplificat-iorr in "that theauxiliary device is arranged on the fr-eely projecting machine arm forlimited pivotal'or shifting movement only. a The holding ring mayobviousl be'givena difier'ent form.

The exeniplification illustr'ated'in Figs. 9 and 10 'diiiers fromtli-atfirst described in that the opened clamping ring i hasappli'ed'to itsouter periphery a closed self supporting "ring 29 whichbonsists, forexample, of rubber. This self supporting ring has'th function'of'bridgingthe gap, that is', the f ree "space existing between the twohand "pieces of the clamping r-ing"I-l, and presenting. to'f thestocking a bearing surface,:t-hatis,-a backin in this zone-so as togi-ve it the necessary. support obviate the tormationoffolds oruneven-portions in the stocking interiorly of-the el-amping ring therebyto facilitatet-he mending work.

' I claim: 7

1. Apparatus for mending-stockings-on sewing machines provided with a;free lll WhiGh the looper is located and over which armlt'he stocking tobe mended is'drawn comprising a =carrier-arm supportedlby s'aid-freearm;a closed-holdingring for holding the stoekingfs'aidh ing being carriedby said carrier armsup'port means'ontheepper side of the freesewingima'chin armfordimiting theflater'al movement of the'holding"1ing;' and internal spreading 1 clam-ping r for clamping thesteak-mean the' 'closedliold-in r higf-saidm-ari 'ier arm dompri's'in wdtelsbdpic' parts -wlii'eh are adjustable with ees pect td each 'otiiexin a l ongit'udihal -direction.

2. Apparatus for mending stockings on sewing machines provided with afree arm in which the looper is located and over which arm the stockingto be mended is drawn comprising, a closed holding ring for holding thestocking, said ring being carried by said arm and capable of bothlateral and longitudinal movement, support means on the upper side ofthe free sewing machine arm for limiting the lateral movement of theholding ring, an internal spreading clamping ring for clamping thestocking in the closed holding ring, said inner spreading clamping ringhaving a gap between its ends, and rubber means extending exteriorlyacross and bridging the gap to support the stockin at said gap.

3. Apparatus for mending stockings on sewing machines provided with afree arm in which the looper is located and over which arm the stockingto be mended is drawn comprising, a closed holding ring for holding thestocking, said ring being carried by said arm and capable of bothlateral and longitudinal movement, support means on the upper side ofthe free sewing machine arm for limiting the lateral movement of theholding ring, an internal spreading clamping ring for clamping thestockin in the closed holding ring, a carrier arm, on which the holdingring is rotatably supported, said carrier arm being positioned on thefree sewing machine arm, a pivot for pivotally securing the carrier armon the machine arm, and means for limiting the pivotal movement of thecarrier arm.

4. Apparatus for mending stockings on sewing machines provided with afree arm in which the looper is located and over which arm the stockingto be mended is drawn comprising, a closed holding ring for holding thestocking, said ring being carried by said arm and capable of bothlateral and longitudinal movement, support means on the upper side ofthe free sewing machine arm for limiting the lateral movement of theholding ring, an internal spreading clamping ring for clamping thestocking in the closed holding ring, means for limiting the movement ofthe holding ring, said means comprising two stop members located on thefree sewing machine arm, and means for connecting said stop members andcomprising two connecting members bearing against the longitudinal sidesof the free sewing machine arm.

FRITZ GEGAUF'.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 312,923 Stewart Feb. 24, 1885435,062 House Aug. 26, 1890 662,202 Ragen Nov. 20, 1900 813,122Trautmann Feb. 20, 1906 905,247 Swoboda Dec. 1, 1908 1,168,471 BerryJan. 18, 1916 1,888,917 Gibbes Nov. 22, 1932 1,944,690 Karle Jan. 23,1934 2,247,379 Hohmann et al July 1, 1941 FOREIGN PATENTS Number CountryDate 196,223 Germany Mar. 7, 1908 229,841 Germany Jan. 7, 1941

